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Solar Mini 4

Tools
upstage/solar-mini4

Text · 524K context · Sep 2026 · 5 upstreams

Solar Mini 4 is Upstage's small, fast tier in the Solar 4 generation. It is a text-only model with a 524,288-token context window. It supports function calling and reasoning, and is a separate model from Solar Pro 4.

Needs your own keyTo use Solar Mini 4, add a key from OpenRouter, Nous Research, AI/ML API or 2 more. AnyRouter adds no fee.
context
524K
input / 1M (list)
$0.05
output / 1M (list)
$0.20
routes
5
speed, 24h
No data yet

Upstreams

5
  1. 1OpenRouterYour keynot addedBilled to your key
  2. 2Nous ResearchYour keynot addedBilled to your key
  3. 3AI/ML APIYour keynot addedBilled to your key
  4. 4NanoGPTYour keynot addedBilled to your key
  5. 5FluenceYour keynot addedBilled to your key

Quick start

curl
curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "upstage/solar-mini4",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'

Details

Owner
Upstage
Kind
Chat
Released
Sep 2026
Context
524K
Data policy
Provider retention
Endpoint
/api/v1/chat/completions